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29 lines
1.9 KiB
Plaintext
29 lines
1.9 KiB
Plaintext
CHECK_ID_check34="3.4,3.04"
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CHECK_TITLE_check34="Ensure a log metric filter and alarm exist for IAM policy changes (Scored)"
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CHECK_SCORED_check34="SCORED"
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CHECK_ALTERNATE_check304="check34"
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check34(){
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# "Ensure a log metric filter and alarm exist for IAM policy changes (Scored)"
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CLOUDWATCH_GROUP=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $REGION --query 'trailList[*].CloudWatchLogsLogGroupArn' --output text | tr ' ' '
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' | awk -F: '{ print $7 }')
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if [[ $CLOUDWATCH_GROUP ]];then
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for group in $CLOUDWATCH_GROUP; do
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CLOUDWATCH_LOGGROUP_REGION=$($AWSCLI cloudtrail describe-trails $PROFILE_OPT --region $REGION --query 'trailList[*].CloudWatchLogsLogGroupArn' --output text | awk -F: '{ print $4 }')
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METRICFILTER_SET=$($AWSCLI logs describe-metric-filters --log-group-name $group $PROFILE_OPT --region $CLOUDWATCH_LOGGROUP_REGION --query 'metricFilters' | grep -E 'DeleteGroupPolicy.*DeleteRolePolicy.*DeleteUserPolicy.*PutGroupPolicy.*PutRolePolicy.*PutUserPolicy.*CreatePolicy.*DeletePolicy.*CreatePolicyVersion.*DeletePolicyVersion.*AttachRolePolicy.*DetachRolePolicy.*AttachUserPolicy.*DetachUserPolicy.*AttachGroupPolicy.*DetachGroupPolicy')
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if [[ $METRICFILTER_SET ]];then
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HAS_ALARM_ASSOCIATED=$($AWSCLI cloudwatch describe-alarms $PROFILE_OPT --region $CLOUDWATCH_LOGGROUP_REGION --query 'MetricAlarms[].MetricName' --output text | awk 'BEGIN {IGNORECASE=1}; /DeletePolicy/ || /DeletePolicies/ || /Policies/ || /Policy/;')
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if [[ $HAS_ALARM_ASSOCIATED ]];then
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textOK "CloudWatch group $group found with metric filters and alarms for IAM policy changes"
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else
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textWarn "CloudWatch group $group found with metric filters but no alarms associated"
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fi
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else
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textWarn "CloudWatch group $group found but no metric filters or alarms associated"
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fi
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done
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else
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textWarn "No CloudWatch group found for CloudTrail events"
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fi
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}
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